Transaction not yet indexed

ACkfE4xLGcD4X7mTAVCn3yiXUocDmqdHpGeDpsTd1AadVBo5gcHxp54LNAgFVkEik7cGS1gM9PAMGwiVBgnsQnN

The transaction signature is valid but not yet indexed by this RPC node, or the transaction failed before inclusion.